Fundamental Facility Type Collaboration Research (National Institutes of Natural Sciences)

Leader：Prof. Kazunobu Nagasaki
Project Period：FY2025‒2027

In fusion research in Japan, we have decided to launch Fundamental Facility Type Collaboration Research Program with the National Institute for Fusion Science (NIFS) for six university centers and research institutes, based on the successful bilateral collaboration research program. It is known that various limits are imposed on the design of magnetic confinement fusion reactors. The core plasma has density limits, beta limits, aspect ratio limits, etc. Stiffness of the temperature profile due to plasma turbulence excitation is also considered a moderate limit. If such limits are eliminated, the degree of freedom in reactor design will be greatly increased, and an optimized and economical reactor is expected to be realized. The Laboratory for Complex Energy Processes aims to achieve limit-free plasmas by focusing on plasma limits, developing the science of limits, and learning, understanding, predicting, and controlling the limits, by utilizing a magnetic confinement plasma experimental device, the Heliotron J device.